Hello Robert, As in one movie someone said "@!#$'s happend" :-) Ahhh... Yeah! "Forest Gump" (don't remember the spelling) So we pride Cisco that they will not involve "real-life" faults in T/S section of CCIE lab :-))) MR> Here is a scenario which caught me out BIG time in a real life situation MR> using ISIS. MR> To make it easier MR> Router A has a serial connection to Router B MR> Everything is up layer 1 & 2i.e CDP can indeed see Router B if you are on MR> Router A and vice versa. Router B can't see any routes from Router A or MR> beyond. MR> NOW Routers A serial 0's ip address is 172.16.130.5, Routers B serial 0's MR> ip address is 172.16.130.5. MR> Spot the deliberate mistake. MR> Although you say AHA he has the same ip address on the serial connections. MR> SO, quite rightly ISIS says, go away I will never make an adjacency with MR> myself !!!! :-( MR> However, it took me quite a while to discover that these IP addresses were MR> indeed duplicated. MR> REASON or should I make it a question? I think question would be better. MR> Q: What do you think would happen if I was on Router A and telnetted to MR> 172.16.130.5, would I telnet to Router A or B. :-> MR> A: This is why it took me a while to realise this. I started debugging MR> adjacencies, blaming a new controller card which was the first time I had MR> used this in ISIS, everything bar the easy problem. Mental Note for me here MR> is don't dive in head first, always fault find the layers and remember this MR> fault because it is nasty!!!! :- What made it worse was the customer sitting over my shoulder saying WHY MR> isn't this working, I knew we shouldn't have bought those new fangled router MR> things!!!!! MR> Oh the joys of life!!!! -- WBW, xander mailto:[EMAIL PROTECTED] CCNA, CCNP+VoiceAccess, CCIE first attempt in Brussels 19-20, April, 2001 ... Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=504&t=504 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
